YOU ARE SUBJECT TO A MAXIMUM AGE, ARE YOU NOT?

Does anyone else wonder sometimes why people all get to about the same max age? Why not a bigger disparity? 

https://answersingenesis.org/bible-timeline/genealogy/did-adam-and-noah-really-live-over-900-years/

http://www.iol.co.za/capetimes/news/worlds-oldest-person--a-heavy-smoker--dies-aged-146-8927122